Seiko Cal. 4461 - 687

This Spring Drive model from 1975 features a 46mm PVD Black case. Powered by the 4461 caliber with 29j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-83c60617353c]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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